Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 1 of 2.

2 files changed, 488 insertions, 488 deletions

diff --git a/contrib/libs/llvm12/lib/Bitstream/Reader/BitstreamReader.cpp b/contrib/libs/llvm12/lib/Bitstream/Reader/BitstreamReader.cpp
index 28adfe6268..f55a971e75 100644
--- a/contrib/libs/llvm12/lib/Bitstream/Reader/BitstreamReader.cpp
+++ b/contrib/libs/llvm12/lib/Bitstream/Reader/BitstreamReader.cpp
@@ -1,476 +1,476 @@
-//===- BitstreamReader.cpp - BitstreamReader implementation ---------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Bitstream/BitstreamReader.h"
-#include "llvm/ADT/StringRef.h"
-#include <cassert>
-#include <string>
-
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//  BitstreamCursor implementation
-//===----------------------------------------------------------------------===//
-
-/// Having read the ENTER_SUBBLOCK abbrevid, enter the block.
-Error BitstreamCursor::EnterSubBlock(unsigned BlockID, unsigned *NumWordsP) {
-  // Save the current block's state on BlockScope.
-  BlockScope.push_back(Block(CurCodeSize));
-  BlockScope.back().PrevAbbrevs.swap(CurAbbrevs);
-
-  // Add the abbrevs specific to this block to the CurAbbrevs list.
-  if (BlockInfo) {
-    if (const BitstreamBlockInfo::BlockInfo *Info =
-            BlockInfo->getBlockInfo(BlockID)) {
+//===- BitstreamReader.cpp - BitstreamReader implementation ---------------===// 
+// 
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
+// See https://llvm.org/LICENSE.txt for license information. 
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
+// 
+//===----------------------------------------------------------------------===// 
+ 
+#include "llvm/Bitstream/BitstreamReader.h" 
+#include "llvm/ADT/StringRef.h" 
+#include <cassert> 
+#include <string> 
+ 
+using namespace llvm; 
+ 
+//===----------------------------------------------------------------------===// 
+//  BitstreamCursor implementation 
+//===----------------------------------------------------------------------===// 
+ 
+/// Having read the ENTER_SUBBLOCK abbrevid, enter the block. 
+Error BitstreamCursor::EnterSubBlock(unsigned BlockID, unsigned *NumWordsP) { 
+  // Save the current block's state on BlockScope. 
+  BlockScope.push_back(Block(CurCodeSize)); 
+  BlockScope.back().PrevAbbrevs.swap(CurAbbrevs); 
+ 
+  // Add the abbrevs specific to this block to the CurAbbrevs list. 
+  if (BlockInfo) { 
+    if (const BitstreamBlockInfo::BlockInfo *Info = 
+            BlockInfo->getBlockInfo(BlockID)) { 
       llvm::append_range(CurAbbrevs, Info->Abbrevs);
-    }
-  }
-
-  // Get the codesize of this block.
-  Expected<uint32_t> MaybeVBR = ReadVBR(bitc::CodeLenWidth);
-  if (!MaybeVBR)
-    return MaybeVBR.takeError();
-  CurCodeSize = MaybeVBR.get();
-
-  if (CurCodeSize > MaxChunkSize)
-    return llvm::createStringError(
-        std::errc::illegal_byte_sequence,
-        "can't read more than %zu at a time, trying to read %u", +MaxChunkSize,
-        CurCodeSize);
-
-  SkipToFourByteBoundary();
-  Expected<word_t> MaybeNum = Read(bitc::BlockSizeWidth);
-  if (!MaybeNum)
-    return MaybeNum.takeError();
-  word_t NumWords = MaybeNum.get();
-  if (NumWordsP)
-    *NumWordsP = NumWords;
-
-  if (CurCodeSize == 0)
-    return llvm::createStringError(
-        std::errc::illegal_byte_sequence,
-        "can't enter sub-block: current code size is 0");
-  if (AtEndOfStream())
-    return llvm::createStringError(
-        std::errc::illegal_byte_sequence,
-        "can't enter sub block: already at end of stream");
-
-  return Error::success();
-}
-
-static Expected<uint64_t> readAbbreviatedField(BitstreamCursor &Cursor,
-                                               const BitCodeAbbrevOp &Op) {
-  assert(!Op.isLiteral() && "Not to be used with literals!");
-
-  // Decode the value as we are commanded.
-  switch (Op.getEncoding()) {
-  case BitCodeAbbrevOp::Array:
-  case BitCodeAbbrevOp::Blob:
-    llvm_unreachable("Should not reach here");
-  case BitCodeAbbrevOp::Fixed:
-    assert((unsigned)Op.getEncodingData() <= Cursor.MaxChunkSize);
-    return Cursor.Read((unsigned)Op.getEncodingData());
-  case BitCodeAbbrevOp::VBR:
-    assert((unsigned)Op.getEncodingData() <= Cursor.MaxChunkSize);
-    return Cursor.ReadVBR64((unsigned)Op.getEncodingData());
-  case BitCodeAbbrevOp::Char6:
-    if (Expected<unsigned> Res = Cursor.Read(6))
-      return BitCodeAbbrevOp::DecodeChar6(Res.get());
-    else
-      return Res.takeError();
-  }
-  llvm_unreachable("invalid abbreviation encoding");
-}
-
-/// skipRecord - Read the current record and discard it.
-Expected<unsigned> BitstreamCursor::skipRecord(unsigned AbbrevID) {
-  // Skip unabbreviated records by reading past their entries.
-  if (AbbrevID == bitc::UNABBREV_RECORD) {
-    Expected<uint32_t> MaybeCode = ReadVBR(6);
-    if (!MaybeCode)
-      return MaybeCode.takeError();
-    unsigned Code = MaybeCode.get();
-    Expected<uint32_t> MaybeVBR = ReadVBR(6);
-    if (!MaybeVBR)
-      return MaybeVBR.get();
-    unsigned NumElts = MaybeVBR.get();
-    for (unsigned i = 0; i != NumElts; ++i)
-      if (Expected<uint64_t> Res = ReadVBR64(6))
-        ; // Skip!
-      else
-        return Res.takeError();
-    return Code;
-  }
-
-  const BitCodeAbbrev *Abbv = getAbbrev(AbbrevID);
-  const BitCodeAbbrevOp &CodeOp = Abbv->getOperandInfo(0);
-  unsigned Code;
-  if (CodeOp.isLiteral())
-    Code = CodeOp.getLiteralValue();
-  else {
-    if (CodeOp.getEncoding() == BitCodeAbbrevOp::Array ||
-        CodeOp.getEncoding() == BitCodeAbbrevOp::Blob)
-      return llvm::createStringError(
-          std::errc::illegal_byte_sequence,
-          "Abbreviation starts with an Array or a Blob");
-    Expected<uint64_t> MaybeCode = readAbbreviatedField(*this, CodeOp);
-    if (!MaybeCode)
-      return MaybeCode.takeError();
-    Code = MaybeCode.get();
-  }
-
-  for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i < e; ++i) {
-    const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i);
-    if (Op.isLiteral())
-      continue;
-
-    if (Op.getEncoding() != BitCodeAbbrevOp::Array &&
-        Op.getEncoding() != BitCodeAbbrevOp::Blob) {
-      if (Expected<uint64_t> MaybeField = readAbbreviatedField(*this, Op))
-        continue;
-      else
-        return MaybeField.takeError();
-    }
-
-    if (Op.getEncoding() == BitCodeAbbrevOp::Array) {
-      // Array case.  Read the number of elements as a vbr6.
-      Expected<uint32_t> MaybeNum = ReadVBR(6);
-      if (!MaybeNum)
-        return MaybeNum.takeError();
-      unsigned NumElts = MaybeNum.get();
-
-      // Get the element encoding.
-      assert(i+2 == e && "array op not second to last?");
-      const BitCodeAbbrevOp &EltEnc = Abbv->getOperandInfo(++i);
-
-      // Read all the elements.
-      // Decode the value as we are commanded.
-      switch (EltEnc.getEncoding()) {
-      default:
-        report_fatal_error("Array element type can't be an Array or a Blob");
-      case BitCodeAbbrevOp::Fixed:
-        assert((unsigned)EltEnc.getEncodingData() <= MaxChunkSize);
+    } 
+  } 
+ 
+  // Get the codesize of this block. 
+  Expected<uint32_t> MaybeVBR = ReadVBR(bitc::CodeLenWidth); 
+  if (!MaybeVBR) 
+    return MaybeVBR.takeError(); 
+  CurCodeSize = MaybeVBR.get(); 
+ 
+  if (CurCodeSize > MaxChunkSize) 
+    return llvm::createStringError( 
+        std::errc::illegal_byte_sequence, 
+        "can't read more than %zu at a time, trying to read %u", +MaxChunkSize, 
+        CurCodeSize); 
+ 
+  SkipToFourByteBoundary(); 
+  Expected<word_t> MaybeNum = Read(bitc::BlockSizeWidth); 
+  if (!MaybeNum) 
+    return MaybeNum.takeError(); 
+  word_t NumWords = MaybeNum.get(); 
+  if (NumWordsP) 
+    *NumWordsP = NumWords; 
+ 
+  if (CurCodeSize == 0) 
+    return llvm::createStringError( 
+        std::errc::illegal_byte_sequence, 
+        "can't enter sub-block: current code size is 0"); 
+  if (AtEndOfStream()) 
+    return llvm::createStringError( 
+        std::errc::illegal_byte_sequence, 
+        "can't enter sub block: already at end of stream"); 
+ 
+  return Error::success(); 
+} 
+ 
+static Expected<uint64_t> readAbbreviatedField(BitstreamCursor &Cursor, 
+                                               const BitCodeAbbrevOp &Op) { 
+  assert(!Op.isLiteral() && "Not to be used with literals!"); 
+ 
+  // Decode the value as we are commanded. 
+  switch (Op.getEncoding()) { 
+  case BitCodeAbbrevOp::Array: 
+  case BitCodeAbbrevOp::Blob: 
+    llvm_unreachable("Should not reach here"); 
+  case BitCodeAbbrevOp::Fixed: 
+    assert((unsigned)Op.getEncodingData() <= Cursor.MaxChunkSize); 
+    return Cursor.Read((unsigned)Op.getEncodingData()); 
+  case BitCodeAbbrevOp::VBR: 
+    assert((unsigned)Op.getEncodingData() <= Cursor.MaxChunkSize); 
+    return Cursor.ReadVBR64((unsigned)Op.getEncodingData()); 
+  case BitCodeAbbrevOp::Char6: 
+    if (Expected<unsigned> Res = Cursor.Read(6)) 
+      return BitCodeAbbrevOp::DecodeChar6(Res.get()); 
+    else 
+      return Res.takeError(); 
+  } 
+  llvm_unreachable("invalid abbreviation encoding"); 
+} 
+ 
+/// skipRecord - Read the current record and discard it. 
+Expected<unsigned> BitstreamCursor::skipRecord(unsigned AbbrevID) { 
+  // Skip unabbreviated records by reading past their entries. 
+  if (AbbrevID == bitc::UNABBREV_RECORD) { 
+    Expected<uint32_t> MaybeCode = ReadVBR(6); 
+    if (!MaybeCode) 
+      return MaybeCode.takeError(); 
+    unsigned Code = MaybeCode.get(); 
+    Expected<uint32_t> MaybeVBR = ReadVBR(6); 
+    if (!MaybeVBR) 
+      return MaybeVBR.get(); 
+    unsigned NumElts = MaybeVBR.get(); 
+    for (unsigned i = 0; i != NumElts; ++i) 
+      if (Expected<uint64_t> Res = ReadVBR64(6)) 
+        ; // Skip! 
+      else 
+        return Res.takeError(); 
+    return Code; 
+  } 
+ 
+  const BitCodeAbbrev *Abbv = getAbbrev(AbbrevID); 
+  const BitCodeAbbrevOp &CodeOp = Abbv->getOperandInfo(0); 
+  unsigned Code; 
+  if (CodeOp.isLiteral()) 
+    Code = CodeOp.getLiteralValue(); 
+  else { 
+    if (CodeOp.getEncoding() == BitCodeAbbrevOp::Array || 
+        CodeOp.getEncoding() == BitCodeAbbrevOp::Blob) 
+      return llvm::createStringError( 
+          std::errc::illegal_byte_sequence, 
+          "Abbreviation starts with an Array or a Blob"); 
+    Expected<uint64_t> MaybeCode = readAbbreviatedField(*this, CodeOp); 
+    if (!MaybeCode) 
+      return MaybeCode.takeError(); 
+    Code = MaybeCode.get(); 
+  } 
+ 
+  for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i < e; ++i) { 
+    const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i); 
+    if (Op.isLiteral()) 
+      continue; 
+ 
+    if (Op.getEncoding() != BitCodeAbbrevOp::Array && 
+        Op.getEncoding() != BitCodeAbbrevOp::Blob) { 
+      if (Expected<uint64_t> MaybeField = readAbbreviatedField(*this, Op)) 
+        continue; 
+      else 
+        return MaybeField.takeError(); 
+    } 
+ 
+    if (Op.getEncoding() == BitCodeAbbrevOp::Array) { 
+      // Array case.  Read the number of elements as a vbr6. 
+      Expected<uint32_t> MaybeNum = ReadVBR(6); 
+      if (!MaybeNum) 
+        return MaybeNum.takeError(); 
+      unsigned NumElts = MaybeNum.get(); 
+ 
+      // Get the element encoding. 
+      assert(i+2 == e && "array op not second to last?"); 
+      const BitCodeAbbrevOp &EltEnc = Abbv->getOperandInfo(++i); 
+ 
+      // Read all the elements. 
+      // Decode the value as we are commanded. 
+      switch (EltEnc.getEncoding()) { 
+      default: 
+        report_fatal_error("Array element type can't be an Array or a Blob"); 
+      case BitCodeAbbrevOp::Fixed: 
+        assert((unsigned)EltEnc.getEncodingData() <= MaxChunkSize); 
         if (Error Err =
                 JumpToBit(GetCurrentBitNo() + static_cast<uint64_t>(NumElts) *
                                                   EltEnc.getEncodingData()))
-          return std::move(Err);
-        break;
-      case BitCodeAbbrevOp::VBR:
-        assert((unsigned)EltEnc.getEncodingData() <= MaxChunkSize);
-        for (; NumElts; --NumElts)
-          if (Expected<uint64_t> Res =
-                  ReadVBR64((unsigned)EltEnc.getEncodingData()))
-            ; // Skip!
-          else
-            return Res.takeError();
-        break;
-      case BitCodeAbbrevOp::Char6:
-        if (Error Err = JumpToBit(GetCurrentBitNo() + NumElts * 6))
-          return std::move(Err);
-        break;
-      }
-      continue;
-    }
-
-    assert(Op.getEncoding() == BitCodeAbbrevOp::Blob);
-    // Blob case.  Read the number of bytes as a vbr6.
-    Expected<uint32_t> MaybeNum = ReadVBR(6);
-    if (!MaybeNum)
-      return MaybeNum.takeError();
-    unsigned NumElts = MaybeNum.get();
-    SkipToFourByteBoundary();  // 32-bit alignment
-
-    // Figure out where the end of this blob will be including tail padding.
+          return std::move(Err); 
+        break; 
+      case BitCodeAbbrevOp::VBR: 
+        assert((unsigned)EltEnc.getEncodingData() <= MaxChunkSize); 
+        for (; NumElts; --NumElts) 
+          if (Expected<uint64_t> Res = 
+                  ReadVBR64((unsigned)EltEnc.getEncodingData())) 
+            ; // Skip! 
+          else 
+            return Res.takeError(); 
+        break; 
+      case BitCodeAbbrevOp::Char6: 
+        if (Error Err = JumpToBit(GetCurrentBitNo() + NumElts * 6)) 
+          return std::move(Err); 
+        break; 
+      } 
+      continue; 
+    } 
+ 
+    assert(Op.getEncoding() == BitCodeAbbrevOp::Blob); 
+    // Blob case.  Read the number of bytes as a vbr6. 
+    Expected<uint32_t> MaybeNum = ReadVBR(6); 
+    if (!MaybeNum) 
+      return MaybeNum.takeError(); 
+    unsigned NumElts = MaybeNum.get(); 
+    SkipToFourByteBoundary();  // 32-bit alignment 
+ 
+    // Figure out where the end of this blob will be including tail padding. 
     const size_t NewEnd = GetCurrentBitNo() + alignTo(NumElts, 4) * 8;
-
-    // If this would read off the end of the bitcode file, just set the
-    // record to empty and return.
-    if (!canSkipToPos(NewEnd/8)) {
-      skipToEnd();
-      break;
-    }
-
-    // Skip over the blob.
-    if (Error Err = JumpToBit(NewEnd))
-      return std::move(Err);
-  }
-  return Code;
-}
-
-Expected<unsigned> BitstreamCursor::readRecord(unsigned AbbrevID,
-                                               SmallVectorImpl<uint64_t> &Vals,
-                                               StringRef *Blob) {
-  if (AbbrevID == bitc::UNABBREV_RECORD) {
-    Expected<uint32_t> MaybeCode = ReadVBR(6);
-    if (!MaybeCode)
-      return MaybeCode.takeError();
-    uint32_t Code = MaybeCode.get();
-    Expected<uint32_t> MaybeNumElts = ReadVBR(6);
-    if (!MaybeNumElts)
-      return MaybeNumElts.takeError();
-    uint32_t NumElts = MaybeNumElts.get();
-    Vals.reserve(Vals.size() + NumElts);
-
-    for (unsigned i = 0; i != NumElts; ++i)
-      if (Expected<uint64_t> MaybeVal = ReadVBR64(6))
-        Vals.push_back(MaybeVal.get());
-      else
-        return MaybeVal.takeError();
-    return Code;
-  }
-
-  const BitCodeAbbrev *Abbv = getAbbrev(AbbrevID);
-
-  // Read the record code first.
-  assert(Abbv->getNumOperandInfos() != 0 && "no record code in abbreviation?");
-  const BitCodeAbbrevOp &CodeOp = Abbv->getOperandInfo(0);
-  unsigned Code;
-  if (CodeOp.isLiteral())
-    Code = CodeOp.getLiteralValue();
-  else {
-    if (CodeOp.getEncoding() == BitCodeAbbrevOp::Array ||
-        CodeOp.getEncoding() == BitCodeAbbrevOp::Blob)
-      report_fatal_error("Abbreviation starts with an Array or a Blob");
-    if (Expected<uint64_t> MaybeCode = readAbbreviatedField(*this, CodeOp))
-      Code = MaybeCode.get();
-    else
-      return MaybeCode.takeError();
-  }
-
-  for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i != e; ++i) {
-    const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i);
-    if (Op.isLiteral()) {
-      Vals.push_back(Op.getLiteralValue());
-      continue;
-    }
-
-    if (Op.getEncoding() != BitCodeAbbrevOp::Array &&
-        Op.getEncoding() != BitCodeAbbrevOp::Blob) {
-      if (Expected<uint64_t> MaybeVal = readAbbreviatedField(*this, Op))
-        Vals.push_back(MaybeVal.get());
-      else
-        return MaybeVal.takeError();
-      continue;
-    }
-
-    if (Op.getEncoding() == BitCodeAbbrevOp::Array) {
-      // Array case.  Read the number of elements as a vbr6.
-      Expected<uint32_t> MaybeNumElts = ReadVBR(6);
-      if (!MaybeNumElts)
-        return MaybeNumElts.takeError();
-      uint32_t NumElts = MaybeNumElts.get();
-      Vals.reserve(Vals.size() + NumElts);
-
-      // Get the element encoding.
-      if (i + 2 != e)
-        report_fatal_error("Array op not second to last");
-      const BitCodeAbbrevOp &EltEnc = Abbv->getOperandInfo(++i);
-      if (!EltEnc.isEncoding())
-        report_fatal_error(
-            "Array element type has to be an encoding of a type");
-
-      // Read all the elements.
-      switch (EltEnc.getEncoding()) {
-      default:
-        report_fatal_error("Array element type can't be an Array or a Blob");
-      case BitCodeAbbrevOp::Fixed:
-        for (; NumElts; --NumElts)
-          if (Expected<SimpleBitstreamCursor::word_t> MaybeVal =
-                  Read((unsigned)EltEnc.getEncodingData()))
-            Vals.push_back(MaybeVal.get());
-          else
-            return MaybeVal.takeError();
-        break;
-      case BitCodeAbbrevOp::VBR:
-        for (; NumElts; --NumElts)
-          if (Expected<uint64_t> MaybeVal =
-                  ReadVBR64((unsigned)EltEnc.getEncodingData()))
-            Vals.push_back(MaybeVal.get());
-          else
-            return MaybeVal.takeError();
-        break;
-      case BitCodeAbbrevOp::Char6:
-        for (; NumElts; --NumElts)
-          if (Expected<SimpleBitstreamCursor::word_t> MaybeVal = Read(6))
-            Vals.push_back(BitCodeAbbrevOp::DecodeChar6(MaybeVal.get()));
-          else
-            return MaybeVal.takeError();
-      }
-      continue;
-    }
-
-    assert(Op.getEncoding() == BitCodeAbbrevOp::Blob);
-    // Blob case.  Read the number of bytes as a vbr6.
-    Expected<uint32_t> MaybeNumElts = ReadVBR(6);
-    if (!MaybeNumElts)
-      return MaybeNumElts.takeError();
-    uint32_t NumElts = MaybeNumElts.get();
-    SkipToFourByteBoundary();  // 32-bit alignment
-
-    // Figure out where the end of this blob will be including tail padding.
-    size_t CurBitPos = GetCurrentBitNo();
+ 
+    // If this would read off the end of the bitcode file, just set the 
+    // record to empty and return. 
+    if (!canSkipToPos(NewEnd/8)) { 
+      skipToEnd(); 
+      break; 
+    } 
+ 
+    // Skip over the blob. 
+    if (Error Err = JumpToBit(NewEnd)) 
+      return std::move(Err); 
+  } 
+  return Code; 
+} 
+ 
+Expected<unsigned> BitstreamCursor::readRecord(unsigned AbbrevID, 
+                                               SmallVectorImpl<uint64_t> &Vals, 
+                                               StringRef *Blob) { 
+  if (AbbrevID == bitc::UNABBREV_RECORD) { 
+    Expected<uint32_t> MaybeCode = ReadVBR(6); 
+    if (!MaybeCode) 
+      return MaybeCode.takeError(); 
+    uint32_t Code = MaybeCode.get(); 
+    Expected<uint32_t> MaybeNumElts = ReadVBR(6); 
+    if (!MaybeNumElts) 
+      return MaybeNumElts.takeError(); 
+    uint32_t NumElts = MaybeNumElts.get(); 
+    Vals.reserve(Vals.size() + NumElts); 
+ 
+    for (unsigned i = 0; i != NumElts; ++i) 
+      if (Expected<uint64_t> MaybeVal = ReadVBR64(6)) 
+        Vals.push_back(MaybeVal.get()); 
+      else 
+        return MaybeVal.takeError(); 
+    return Code; 
+  } 
+ 
+  const BitCodeAbbrev *Abbv = getAbbrev(AbbrevID); 
+ 
+  // Read the record code first. 
+  assert(Abbv->getNumOperandInfos() != 0 && "no record code in abbreviation?"); 
+  const BitCodeAbbrevOp &CodeOp = Abbv->getOperandInfo(0); 
+  unsigned Code; 
+  if (CodeOp.isLiteral()) 
+    Code = CodeOp.getLiteralValue(); 
+  else { 
+    if (CodeOp.getEncoding() == BitCodeAbbrevOp::Array || 
+        CodeOp.getEncoding() == BitCodeAbbrevOp::Blob) 
+      report_fatal_error("Abbreviation starts with an Array or a Blob"); 
+    if (Expected<uint64_t> MaybeCode = readAbbreviatedField(*this, CodeOp)) 
+      Code = MaybeCode.get(); 
+    else 
+      return MaybeCode.takeError(); 
+  } 
+ 
+  for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i != e; ++i) { 
+    const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i); 
+    if (Op.isLiteral()) { 
+      Vals.push_back(Op.getLiteralValue()); 
+      continue; 
+    } 
+ 
+    if (Op.getEncoding() != BitCodeAbbrevOp::Array && 
+        Op.getEncoding() != BitCodeAbbrevOp::Blob) { 
+      if (Expected<uint64_t> MaybeVal = readAbbreviatedField(*this, Op)) 
+        Vals.push_back(MaybeVal.get()); 
+      else 
+        return MaybeVal.takeError(); 
+      continue; 
+    } 
+ 
+    if (Op.getEncoding() == BitCodeAbbrevOp::Array) { 
+      // Array case.  Read the number of elements as a vbr6. 
+      Expected<uint32_t> MaybeNumElts = ReadVBR(6); 
+      if (!MaybeNumElts) 
+        return MaybeNumElts.takeError(); 
+      uint32_t NumElts = MaybeNumElts.get(); 
+      Vals.reserve(Vals.size() + NumElts); 
+ 
+      // Get the element encoding. 
+      if (i + 2 != e) 
+        report_fatal_error("Array op not second to last"); 
+      const BitCodeAbbrevOp &EltEnc = Abbv->getOperandInfo(++i); 
+      if (!EltEnc.isEncoding()) 
+        report_fatal_error( 
+            "Array element type has to be an encoding of a type"); 
+ 
+      // Read all the elements. 
+      switch (EltEnc.getEncoding()) { 
+      default: 
+        report_fatal_error("Array element type can't be an Array or a Blob"); 
+      case BitCodeAbbrevOp::Fixed: 
+        for (; NumElts; --NumElts) 
+          if (Expected<SimpleBitstreamCursor::word_t> MaybeVal = 
+                  Read((unsigned)EltEnc.getEncodingData())) 
+            Vals.push_back(MaybeVal.get()); 
+          else 
+            return MaybeVal.takeError(); 
+        break; 
+      case BitCodeAbbrevOp::VBR: 
+        for (; NumElts; --NumElts) 
+          if (Expected<uint64_t> MaybeVal = 
+                  ReadVBR64((unsigned)EltEnc.getEncodingData())) 
+            Vals.push_back(MaybeVal.get()); 
+          else 
+            return MaybeVal.takeError(); 
+        break; 
+      case BitCodeAbbrevOp::Char6: 
+        for (; NumElts; --NumElts) 
+          if (Expected<SimpleBitstreamCursor::word_t> MaybeVal = Read(6)) 
+            Vals.push_back(BitCodeAbbrevOp::DecodeChar6(MaybeVal.get())); 
+          else 
+            return MaybeVal.takeError(); 
+      } 
+      continue; 
+    } 
+ 
+    assert(Op.getEncoding() == BitCodeAbbrevOp::Blob); 
+    // Blob case.  Read the number of bytes as a vbr6. 
+    Expected<uint32_t> MaybeNumElts = ReadVBR(6); 
+    if (!MaybeNumElts) 
+      return MaybeNumElts.takeError(); 
+    uint32_t NumElts = MaybeNumElts.get(); 
+    SkipToFourByteBoundary();  // 32-bit alignment 
+ 
+    // Figure out where the end of this blob will be including tail padding. 
+    size_t CurBitPos = GetCurrentBitNo(); 
     const size_t NewEnd = CurBitPos + alignTo(NumElts, 4) * 8;
-
-    // If this would read off the end of the bitcode file, just set the
-    // record to empty and return.
-    if (!canSkipToPos(NewEnd/8)) {
-      Vals.append(NumElts, 0);
-      skipToEnd();
-      break;
-    }
-
-    // Otherwise, inform the streamer that we need these bytes in memory.  Skip
-    // over tail padding first, in case jumping to NewEnd invalidates the Blob
-    // pointer.
-    if (Error Err = JumpToBit(NewEnd))
-      return std::move(Err);
-    const char *Ptr = (const char *)getPointerToBit(CurBitPos, NumElts);
-
-    // If we can return a reference to the data, do so to avoid copying it.
-    if (Blob) {
-      *Blob = StringRef(Ptr, NumElts);
-    } else {
-      // Otherwise, unpack into Vals with zero extension.
-      auto *UPtr = reinterpret_cast<const unsigned char *>(Ptr);
-      Vals.append(UPtr, UPtr + NumElts);
-    }
-  }
-
-  return Code;
-}
-
-Error BitstreamCursor::ReadAbbrevRecord() {
-  auto Abbv = std::make_shared<BitCodeAbbrev>();
-  Expected<uint32_t> MaybeNumOpInfo = ReadVBR(5);
-  if (!MaybeNumOpInfo)
-    return MaybeNumOpInfo.takeError();
-  unsigned NumOpInfo = MaybeNumOpInfo.get();
-  for (unsigned i = 0; i != NumOpInfo; ++i) {
-    Expected<word_t> MaybeIsLiteral = Read(1);
-    if (!MaybeIsLiteral)
-      return MaybeIsLiteral.takeError();
-    bool IsLiteral = MaybeIsLiteral.get();
-    if (IsLiteral) {
-      Expected<uint64_t> MaybeOp = ReadVBR64(8);
-      if (!MaybeOp)
-        return MaybeOp.takeError();
-      Abbv->Add(BitCodeAbbrevOp(MaybeOp.get()));
-      continue;
-    }
-
-    Expected<word_t> MaybeEncoding = Read(3);
-    if (!MaybeEncoding)
-      return MaybeEncoding.takeError();
-    BitCodeAbbrevOp::Encoding E =
-        (BitCodeAbbrevOp::Encoding)MaybeEncoding.get();
-    if (BitCodeAbbrevOp::hasEncodingData(E)) {
-      Expected<uint64_t> MaybeData = ReadVBR64(5);
-      if (!MaybeData)
-        return MaybeData.takeError();
-      uint64_t Data = MaybeData.get();
-
-      // As a special case, handle fixed(0) (i.e., a fixed field with zero bits)
-      // and vbr(0) as a literal zero.  This is decoded the same way, and avoids
-      // a slow path in Read() to have to handle reading zero bits.
-      if ((E == BitCodeAbbrevOp::Fixed || E == BitCodeAbbrevOp::VBR) &&
-          Data == 0) {
-        Abbv->Add(BitCodeAbbrevOp(0));
-        continue;
-      }
-
-      if ((E == BitCodeAbbrevOp::Fixed || E == BitCodeAbbrevOp::VBR) &&
-          Data > MaxChunkSize)
-        report_fatal_error(
-            "Fixed or VBR abbrev record with size > MaxChunkData");
-
-      Abbv->Add(BitCodeAbbrevOp(E, Data));
-    } else
-      Abbv->Add(BitCodeAbbrevOp(E));
-  }
-
-  if (Abbv->getNumOperandInfos() == 0)
-    report_fatal_error("Abbrev record with no operands");
-  CurAbbrevs.push_back(std::move(Abbv));
-
-  return Error::success();
-}
-
-Expected<Optional<BitstreamBlockInfo>>
-BitstreamCursor::ReadBlockInfoBlock(bool ReadBlockInfoNames) {
-  if (llvm::Error Err = EnterSubBlock(bitc::BLOCKINFO_BLOCK_ID))
-    return std::move(Err);
-
-  BitstreamBlockInfo NewBlockInfo;
-
-  SmallVector<uint64_t, 64> Record;
-  BitstreamBlockInfo::BlockInfo *CurBlockInfo = nullptr;
-
-  // Read all the records for this module.
-  while (true) {
-    Expected<BitstreamEntry> MaybeEntry =
-        advanceSkippingSubblocks(AF_DontAutoprocessAbbrevs);
-    if (!MaybeEntry)
-      return MaybeEntry.takeError();
-    BitstreamEntry Entry = MaybeEntry.get();
-
-    switch (Entry.Kind) {
-    case llvm::BitstreamEntry::SubBlock: // Handled for us already.
-    case llvm::BitstreamEntry::Error:
-      return None;
-    case llvm::BitstreamEntry::EndBlock:
-      return std::move(NewBlockInfo);
-    case llvm::BitstreamEntry::Record:
-      // The interesting case.
-      break;
-    }
-
-    // Read abbrev records, associate them with CurBID.
-    if (Entry.ID == bitc::DEFINE_ABBREV) {
-      if (!CurBlockInfo) return None;
-      if (Error Err = ReadAbbrevRecord())
-        return std::move(Err);
-
-      // ReadAbbrevRecord installs the abbrev in CurAbbrevs.  Move it to the
-      // appropriate BlockInfo.
-      CurBlockInfo->Abbrevs.push_back(std::move(CurAbbrevs.back()));
-      CurAbbrevs.pop_back();
-      continue;
-    }
-
-    // Read a record.
-    Record.clear();
-    Expected<unsigned> MaybeBlockInfo = readRecord(Entry.ID, Record);
-    if (!MaybeBlockInfo)
-      return MaybeBlockInfo.takeError();
-    switch (MaybeBlockInfo.get()) {
-    default:
-      break; // Default behavior, ignore unknown content.
-    case bitc::BLOCKINFO_CODE_SETBID:
-      if (Record.size() < 1)
-        return None;
-      CurBlockInfo = &NewBlockInfo.getOrCreateBlockInfo((unsigned)Record[0]);
-      break;
-    case bitc::BLOCKINFO_CODE_BLOCKNAME: {
-      if (!CurBlockInfo)
-        return None;
-      if (!ReadBlockInfoNames)
-        break; // Ignore name.
-      CurBlockInfo->Name = std::string(Record.begin(), Record.end());
-      break;
-    }
-      case bitc::BLOCKINFO_CODE_SETRECORDNAME: {
-        if (!CurBlockInfo) return None;
-        if (!ReadBlockInfoNames)
-          break; // Ignore name.
-        CurBlockInfo->RecordNames.emplace_back(
-            (unsigned)Record[0], std::string(Record.begin() + 1, Record.end()));
-        break;
-      }
-      }
-  }
-}
+ 
+    // If this would read off the end of the bitcode file, just set the 
+    // record to empty and return. 
+    if (!canSkipToPos(NewEnd/8)) { 
+      Vals.append(NumElts, 0); 
+      skipToEnd(); 
+      break; 
+    } 
+ 
+    // Otherwise, inform the streamer that we need these bytes in memory.  Skip 
+    // over tail padding first, in case jumping to NewEnd invalidates the Blob 
+    // pointer. 
+    if (Error Err = JumpToBit(NewEnd)) 
+      return std::move(Err); 
+    const char *Ptr = (const char *)getPointerToBit(CurBitPos, NumElts); 
+ 
+    // If we can return a reference to the data, do so to avoid copying it. 
+    if (Blob) { 
+      *Blob = StringRef(Ptr, NumElts); 
+    } else { 
+      // Otherwise, unpack into Vals with zero extension. 
+      auto *UPtr = reinterpret_cast<const unsigned char *>(Ptr); 
+      Vals.append(UPtr, UPtr + NumElts); 
+    } 
+  } 
+ 
+  return Code; 
+} 
+ 
+Error BitstreamCursor::ReadAbbrevRecord() { 
+  auto Abbv = std::make_shared<BitCodeAbbrev>(); 
+  Expected<uint32_t> MaybeNumOpInfo = ReadVBR(5); 
+  if (!MaybeNumOpInfo) 
+    return MaybeNumOpInfo.takeError(); 
+  unsigned NumOpInfo = MaybeNumOpInfo.get(); 
+  for (unsigned i = 0; i != NumOpInfo; ++i) { 
+    Expected<word_t> MaybeIsLiteral = Read(1); 
+    if (!MaybeIsLiteral) 
+      return MaybeIsLiteral.takeError(); 
+    bool IsLiteral = MaybeIsLiteral.get(); 
+    if (IsLiteral) { 
+      Expected<uint64_t> MaybeOp = ReadVBR64(8); 
+      if (!MaybeOp) 
+        return MaybeOp.takeError(); 
+      Abbv->Add(BitCodeAbbrevOp(MaybeOp.get())); 
+      continue; 
+    } 
+ 
+    Expected<word_t> MaybeEncoding = Read(3); 
+    if (!MaybeEncoding) 
+      return MaybeEncoding.takeError(); 
+    BitCodeAbbrevOp::Encoding E = 
+        (BitCodeAbbrevOp::Encoding)MaybeEncoding.get(); 
+    if (BitCodeAbbrevOp::hasEncodingData(E)) { 
+      Expected<uint64_t> MaybeData = ReadVBR64(5); 
+      if (!MaybeData) 
+        return MaybeData.takeError(); 
+      uint64_t Data = MaybeData.get(); 
+ 
+      // As a special case, handle fixed(0) (i.e., a fixed field with zero bits) 
+      // and vbr(0) as a literal zero.  This is decoded the same way, and avoids 
+      // a slow path in Read() to have to handle reading zero bits. 
+      if ((E == BitCodeAbbrevOp::Fixed || E == BitCodeAbbrevOp::VBR) && 
+          Data == 0) { 
+        Abbv->Add(BitCodeAbbrevOp(0)); 
+        continue; 
+      } 
+ 
+      if ((E == BitCodeAbbrevOp::Fixed || E == BitCodeAbbrevOp::VBR) && 
+          Data > MaxChunkSize) 
+        report_fatal_error( 
+            "Fixed or VBR abbrev record with size > MaxChunkData"); 
+ 
+      Abbv->Add(BitCodeAbbrevOp(E, Data)); 
+    } else 
+      Abbv->Add(BitCodeAbbrevOp(E)); 
+  } 
+ 
+  if (Abbv->getNumOperandInfos() == 0) 
+    report_fatal_error("Abbrev record with no operands"); 
+  CurAbbrevs.push_back(std::move(Abbv)); 
+ 
+  return Error::success(); 
+} 
+ 
+Expected<Optional<BitstreamBlockInfo>> 
+BitstreamCursor::ReadBlockInfoBlock(bool ReadBlockInfoNames) { 
+  if (llvm::Error Err = EnterSubBlock(bitc::BLOCKINFO_BLOCK_ID)) 
+    return std::move(Err); 
+ 
+  BitstreamBlockInfo NewBlockInfo; 
+ 
+  SmallVector<uint64_t, 64> Record; 
+  BitstreamBlockInfo::BlockInfo *CurBlockInfo = nullptr; 
+ 
+  // Read all the records for this module. 
+  while (true) { 
+    Expected<BitstreamEntry> MaybeEntry = 
+        advanceSkippingSubblocks(AF_DontAutoprocessAbbrevs); 
+    if (!MaybeEntry) 
+      return MaybeEntry.takeError(); 
+    BitstreamEntry Entry = MaybeEntry.get(); 
+ 
+    switch (Entry.Kind) { 
+    case llvm::BitstreamEntry::SubBlock: // Handled for us already. 
+    case llvm::BitstreamEntry::Error: 
+      return None; 
+    case llvm::BitstreamEntry::EndBlock: 
+      return std::move(NewBlockInfo); 
+    case llvm::BitstreamEntry::Record: 
+      // The interesting case. 
+      break; 
+    } 
+ 
+    // Read abbrev records, associate them with CurBID. 
+    if (Entry.ID == bitc::DEFINE_ABBREV) { 
+      if (!CurBlockInfo) return None; 
+      if (Error Err = ReadAbbrevRecord()) 
+        return std::move(Err); 
+ 
+      // ReadAbbrevRecord installs the abbrev in CurAbbrevs.  Move it to the 
+      // appropriate BlockInfo. 
+      CurBlockInfo->Abbrevs.push_back(std::move(CurAbbrevs.back())); 
+      CurAbbrevs.pop_back(); 
+      continue; 
+    } 
+ 
+    // Read a record. 
+    Record.clear(); 
+    Expected<unsigned> MaybeBlockInfo = readRecord(Entry.ID, Record); 
+    if (!MaybeBlockInfo) 
+      return MaybeBlockInfo.takeError(); 
+    switch (MaybeBlockInfo.get()) { 
+    default: 
+      break; // Default behavior, ignore unknown content. 
+    case bitc::BLOCKINFO_CODE_SETBID: 
+      if (Record.size() < 1) 
+        return None; 
+      CurBlockInfo = &NewBlockInfo.getOrCreateBlockInfo((unsigned)Record[0]); 
+      break; 
+    case bitc::BLOCKINFO_CODE_BLOCKNAME: { 
+      if (!CurBlockInfo) 
+        return None; 
+      if (!ReadBlockInfoNames) 
+        break; // Ignore name. 
+      CurBlockInfo->Name = std::string(Record.begin(), Record.end()); 
+      break; 
+    } 
+      case bitc::BLOCKINFO_CODE_SETRECORDNAME: { 
+        if (!CurBlockInfo) return None; 
+        if (!ReadBlockInfoNames) 
+          break; // Ignore name. 
+        CurBlockInfo->RecordNames.emplace_back( 
+            (unsigned)Record[0], std::string(Record.begin() + 1, Record.end())); 
+        break; 
+      } 
+      } 
+  } 
+} 
diff --git a/contrib/libs/llvm12/lib/Bitstream/Reader/ya.make b/contrib/libs/llvm12/lib/Bitstream/Reader/ya.make
index 09acec1b47..e19bf0103f 100644
--- a/contrib/libs/llvm12/lib/Bitstream/Reader/ya.make
+++ b/contrib/libs/llvm12/lib/Bitstream/Reader/ya.make
@@ -1,31 +1,31 @@
-# Generated by devtools/yamaker.
-
-LIBRARY()
-
+# Generated by devtools/yamaker. 
+ 
+LIBRARY() 
+ 
 OWNER(
     orivej
     g:cpp-contrib
 )
-
+ 
 LICENSE(Apache-2.0 WITH LLVM-exception)
 
 LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
 
-PEERDIR(
+PEERDIR( 
     contrib/libs/llvm12
     contrib/libs/llvm12/lib/Support
-)
-
+) 
+ 
 ADDINCL(
     contrib/libs/llvm12/lib/Bitstream/Reader
 )
-
-NO_COMPILER_WARNINGS()
-
-NO_UTIL()
-
-SRCS(
-    BitstreamReader.cpp
-)
-
-END()
+ 
+NO_COMPILER_WARNINGS() 
+ 
+NO_UTIL() 
+ 
+SRCS( 
+    BitstreamReader.cpp 
+) 
+ 
+END()